Market-Oriented Programming Method applied in Distributed Energy Managment Programme

Abstract: Control of CO 2 emissions which is the main factor of global warming is one of the most important problems in the 21st century about preservation of earth environment. Therefore, efficient supply and use of energy are indispensable. We have proposed distributed energy management systems (DEMSs), where we are to obtain optimal plans that minimize both of costs and of CO 2 emissions through electrical and thermal energy trading. A DEMS consists of the plural entities that seek their own economic profits. In this paper, we propose a trading method that gives competitive equilibrium resource distribution by applying the market-oriented programming (MOP) to DEMSs

1. Introduction

2. Distributed Energy Management Systems

Example Group

Fig. 1. An example group
Fig. 2. A building model
Fig. 3. A factory model

3. Application of the Market-Oriented Programming into DEMSs

Fig. 4. Price updating in the market

3.3 Bidding Strategies

3.4 Demand-Supply Curves

Fig. 5. Demand-supply curves in DEMSs

3.5 Execution Procedure

Fig. 6. Over-demand at α

4. Computational Experiments

Fig. 8. Execution procedure
Table 1. Unit price and CO2 emission basic unit of electricity and gas from outside of the group; Table 2. Parameters of energy conversion devices;
Table 3. Ex1: energy demands and caps on emissions
Table 4. Ex1: energy allocation by the MOP method; Table 5. Ex1: energy allocation by the auction method ; Table 6. Ex1: energy allocaiton by the whole optimization method.
Table 7. Ex1: energy allocation by the individual optimization method.
Table 8. Ex2: energy demands and caps on emissions
Fig. 9. Ex2: transition of group cost;
Fig. 10. Ex2: transition of CO2 emissions by the MOP method;
Fig. 11. Ex2: transition of CO2 emissions by the auction method;
Table 9. Ex3: energy demands and caps on emissions;

4.5.1 Comparison on Group Cost

Fig. 12. Ex3: transition of group cost;
Fig. 13. Ex3: transitions of electricity trade of Factory2;
Table 10. Ex3: change of unit price and CO2 emission basic unit; Table 11. Ex4: energy demands and caps on emissions;
Table 12. Ex4: caps on CO2 emissions and basic units; Table 13. Ex4: group costs when emissions basic units in Table 12 are used; Table 14. Ex4: group costs when βE = 0.502, βH = 0.020;

6. In Conclusion

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